CPAS replacement - P0014

Keith.B.Nimble

Keith.B.Nimble

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Mar 24, 2014
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I got a P0014 code on my 02 Trailblazer. I pulled out the CPAS and it looked horrible, lots of gunk on the screens. Since my car has 254,000 miles I figured I would replace it. In the process noticed that the connector was full of oil. I replaced the CPAS and cleaned the connector as best as I could but did not replace it. While I was at it I also replaced the Cam Shaft Position Sensor. The car is now throwing a P0300 general misfire code. I am in the process of replacing all the spark plugs with AC Delcos 41-103, thats whats in there right now. However I am wondering if I need to replace that CPAS connector. If so how involved is that? Does anyone have a part number?

This forum rocks.
Keith
 
If you run it long enough, you might end up seeing a more specific cylinder misfire. How many miles do you have on thge plugs? Typically plug replacement is due every 100k. You could also have a coil going bad. That will be hard to trouble shoot as you have the general misfire CEL. When you get a specific misfire, you can swap coils to see if the misfire follows a coil.

I assume your TB has the 4.2L I6? Please fill out your vehicle profile.

Straight from rockauto.com, $35 for the connector. I have never changed the connector, so I am not sure how involved the procedure is.

ACDELCO Part # PT1496 {#15306431} GM Original Equipment
Trailblazer Base Model; 3-WAY FEMALE BLACK
 
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Could try spraying out the connector with some contact cleaner, but I would suspect that it isn't the cause of the P0300.

I thought if you changed the cam position sensor that you needed to run a relearn, but I could be wrong on that. Maybe it was the crank position sensor that required the relearn.
 
I replaced the spark plugs less than 40,000 miles ago.

I may have stumbled on the problem. In the process of removing the spark plugs I noticed that plug #4 well was filled with water. We have had a fair amount of rain in the last several days. It may be that that spark plug was shorting out. I purchased new gaskets for all of the coil packs and new spark plugs. Since I am going this far it just made sense to replace them. I also took off the throttle body to clean it out. I will pull the proper fuses to reset the PCM.

I ran out of daylight so I will finish the job tomorrow.

Keith
 
Common problem with the way the water pours onto the engine, new gaskets should fix it.

Did you sop up all of the water out of there?
 
Keith.B.Nimble said:
I replaced the spark plugs less than 40,000 miles ago.

I may have stumbled on the problem. In the process of removing the spark plugs I noticed that plug #4 well was filled with water. We have had a fair amount of rain in the last several days. It may be that that spark plug was shorting out. I purchased new gaskets for all of the coil packs and new spark plugs. Since I am going this far it just made sense to replace them. I also took off the throttle body to clean it out. I will pull the proper fuses to reset the PCM.

I ran out of daylight so I will finish the job tomorrow.

Keith
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That would do it. I've had the same happen to me a couple times. No I never fixed the gaskets lol.
 
It's not so much the gaskets, but the hood seal has a notch in it in the sheet metal right above #4. Common problem with the moisture in the #4 plug well.
 
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Just an FYI: Changing the Crank Angle Position Sensor can, some times, cause a problem.
A CASE relearn with a TECH 2 would be required. Pulling fuses or disconnecting the battery won't do it.
 
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Mounce said:
Common problem with the way the water pours onto the engine, new gaskets should fix it.

Did you sop up all of the water out of there?
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Yes I did. I used a shop rag and shoved it down in there real good to get it all dried up before pulling out the spark plug.

There were multiple cracks in all of the coil pack gaskets. Between the cracks and the notch on the hood seal it made for a bad combination. I am just glad it never happened before.

Keith
 
Keith, or anyone really who reads this, can these gaskets be purchased at the typical retailer like Advance, AutoZone etc? I changed my plugs less than a week ago and lo and behold, water in #4.
 
I wasn't able to find replacements anywhere but the dealer when I looked, and the cost was ridiculous, so I opted to forget about it. Do what Wooluf1952 said if you're having problems with water in yours. I had water in mine twice in the 5 years I've had it, so it hasn't been enough of a bother to me to fix anything.
 
I picked up a spark plug boot kit at Autozone. It was $19.99 for all six. Its a box that contains the spark plug boots, the spring that sits on top of the spark plug, and the coil gaskets. I only used the coil gaskets. If you decide to go the same route make sure you check the box before you pay. The first 2 stores that I went to the gaskets weren't even in the box. The third store was the winner.

Here is the kit.
http://www.autozone.com/ignition-tune-up-and-routine-maintenance/wireset/duralast-wireset/chevrolet/trailblazer-2wd/2002/6-cylinders-s-4-2l-sfi-dohc/976865_974363_17367/


Have a great day.
Keith
 
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Now where was that when I was looking for gaskets a few years back! Good find!
 
Wooluf1952, thank you for the welcome! I was/am a member at TrailVoy for a long time. I've lurked here, as I did there, for a while and consider myself lucky enough that I either didn't have a problem, or knew how to fix the ones I did, without needing to post any questions.

Keith, thank you so much for the information and the link. I was only able to find three-packs of the gaskets themselves which were all the priced similar to the entire kit you used. Did you have to change your spark plugs or are they unaffected? My 4, 5 and 6 all had standing water in them I had to wick out.

Thank you for the information, and many apologies for hijacking the thread. Your post was the only one I located on this site with the exact problem I'm experiencing.
 
No problem at all. Thats the reason for the forum, to help one another out with an interchange of experiences.

The spark plugs in the car had maybe 40K miles. All 6 of them were good. Just because I was already there I went ahead and replaced them. Hopefully I won't have to touch them for another 100K miles. However my car has just shy of 254,000 miles so we will see if it lasts that long.

I had standing water in #4 only. When I replaced the gasket I pulled the old boot off the coil pack assembly. When you do that you will see a metal stub. That stub looked like it had some muddy gooy stuff on it from the standing water (on number 4 only). I cleaned it out with a rag. The spring, in the boot, looked the same so I took it out and cleaned it up as well. I put the old boot and spring back on. I pulled the boot off the rest of the plugs but all of those were dry and clean.

Hope that helps
Keith
 
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Welcome to the nation from another Texan.
Did your P0014 issue get resolved?
 
The check engine light turned off by itself before I did anything about it. I pulled the P0014 with a code reader. I replaced the CPAS as a preventive measure from it happening again. The P0014 has not returned since replacing the CPAS. So yes it was resolved.

Keith
 
I just changed my cpas, I wasn't getting a code but it was loose and the connection had oil in it, so I changed it with a Delphi one and I had no light for about three weeks and now I have a code, P0014. Could the sensor be bad already? It did sit for two weeks because I was out of town.
 
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When was the last time you changed your oil? What kind of filter is on it? That can usually cause the code to pop up. Also something else that will throw that code is the exhaust system being clogged. I would lean towards the oil filter being clogged.
 
I changed the oil about 2000 miles ago and I think the filter is a purolator but I can't remember. It's not the exhaust, I did a lot of tests and nothing is pointing towards the exhaust being clogged.
 
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Are you sure you changed the cpas? Some people get them confused with the cam sensor. Did you have to move the power steering pump to change it? The cam phaser could also be a problem. Make sure your oil is full, change the filter I recommend either Delco pe61, wix, or Purolator. Clear the code and see if it comes back.

The reason I mentioned the exhaust is mine was doing the same thing and it turned out my cat was clogged up badly. Once I fixed that it went away.
 
He did mention that the connector had oil in it, indicative that it was in fact the CPAS.

Did you have a look at the camshaft sensor? Could need a cleaning.
 
Yes I changed the cpas. I didn't just want to throw parts at it without knowing what needed changed. I looked at the cam position sensor and it didn't look dirty, but I cleaned it anyways and reinstalled. I did run my obd fusion and it failed the Evap emissions and catalyst non continuous failed also (whatever that is). It also failed TID $70 and $71 and I have no idea what those are too.
 
I think that's because you've probably been resetting the codes and it hasn't finished doing the tests for the I/M readiness for E-tests.

Did you completely clean the CPAS connector? Some have replaced it after being contaminated with oil.
 
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Mooseman said:
He did mention that the connector had oil in it, indicative that it was in fact the CPAS.
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I considered that, but felt that it was important in the troubleshooting process to eliminate any doubts about the cpas.

Any word on any of the suggestion I made about the oil filter?
 
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